Cosmetic composition comprising an alkyl phosphate and a fatty alkyl ether of polyethylene glycol, processes therefor and uses thereof

ABSTRACT

A mascara composition including water; an emulsifying system of at least one C 16 -C 18  alkyl phosphate and at least one C 16 -C 22  fatty alkyl ether of polyethylene glycol, the ether with 1 to 19 ethylene glycol units and having an HLB&lt;8 at 25° C.; at least one pigment having a color; and at least one wax; wherein the emulsification system inhibits aggregation of the pigment in the mascara composition such that the color of the pigment is not inhibited, and wherein the mascara composition has a viscosity ranging from 1 to 60 Pa·s.

REFERENCE TO PRIOR APPLICATIONS

This application is a continuation of U.S. application Ser. No.11/934,889 filed Nov. 5, 2007, which is incorporated herein by referenceand allowed, and claims the benefit of U.S. provisional application60/868,749 filed Dec. 6, 2006, and French patent application 06 54827filed Nov. 10, 2006, both incorporated herein by reference.

FIELD OF THE INVENTION

The present patent application relates to the field of making up orcaring for keratin fibres such as the eyelashes or the eyebrows, andmore particularly relates to eyelash coating compositions, or mascaras.

Additional advantages and other features of the present invention willbe set forth in part in the description that follows and in part willbecome apparent to those having ordinary skill in the art uponexamination of the following or may be learned from the practice of thepresent invention. The advantages of the present invention may berealized and obtained as particularly pointed out in the appendedclaims. As will be realized, the present invention is capable of otherand different embodiments, and its several details are capable ofmodifications in various obvious respects, all without departing fromthe present invention. The description is to be regarded as illustrativein nature, and not as restrictive.

BACKGROUND OF THE INVENTION

Eyelash coating compositions such as mascaras are generally makeupcompositions, compositions to be applied over a makeup (also known astop coats), or cosmetic eyelash care compositions.

Mascaras are especially prepared according to two types of formulation:water-based mascaras known as cream mascaras, in the form of adispersion of waxes in water; mascaras that are anhydrous or that have alow water content, known as waterproof mascaras, in the form ofdispersions of waxes in organic solvents.

The present patent application more specifically concerns water-basedmascaras.

Application of mascara makes it possible to increase the volume of theeyelashes and consequently to increase the intensity of the gaze. Manythickening or volumizing mascaras exist for doing this, the principle ofwhich consists in depositing the maximum amount of material onto theeyelashes so as to obtain a volumizing (or charging) effect.

It is in particular by means of the amount of solid particles(especially waxes, which make it possible to structure the composition)that the application specificities desired for the compositions can beadjusted, for instance their fluidity or consistency, and also theirthickening power (also known as the charging power or makeup power).

These solid particles are dispersed in the cream mascara by means of asurfactant system.

Among the standard emulsifiers or emulsifying systems, there are

-   -   cetyl phosphate, but the use of cetyl phosphate alone leads to        aggregation of the pigments and also to coarse dispersion of the        waxes; this frequently results in a “grey” rather than a black        mascara;    -   emulsifying systems based on Steareth-20 and Steareth-2, but the        use of these systems leads to very fluid mascaras whose        consistency is unsatisfactory for a volumizing mascara;    -   emulsifying systems based on triethanolamine stearate.

One problem addressed by the present patent application is a mascara inwhich not only the waxes but also the pigments are dispersed uniformly,the mascara having a texture that is thick enough to obtain a charging,volumizing deposit on the eyelashes, and having a satisfactoryconsistency allowing easy application to the eyelashes and smooth,uniform deposition.

SUMMARY OF THE INVENTION

The inventors of the present patent application have, surprisingly andunexpectedly, solved this problem by providing an emulsifying systemcontaining at least one C₁₀-C₃₀ alkyl phosphate and at least one C₈-C₂₄fatty alkyl ether of polyethylene glycol, the ether comprising from 1 to19 ethylene glycol units and having an HLB<8 at 25° C.

The inventors of the present patent application have observed that theemulsifying system defined in the present patent application allows gooddispersion of pigments and/or waxes, this dispersion being of thequality of those obtained with emulsifying systems based ontriethanolamine stearate. This composition makes it possible to obtain acharging makeup for keratin fibres and a smooth, uniform deposit on thefibres.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The composition according to the invention advantageously has aviscosity generally ranging from 1 to 60 Pa·s, preferably from 1.5 to 50Pa·s, better still from 2 to 40 Pa·s and even better still from 3 to 30Pa·s.

The viscosity of the composition is measured at 25° C. using a Rheomat180 viscometer (from the company Lamy) equipped with an MS-R1, MS-R2,MS-R3, MS-R4 or MS-R5 spindle chosen as a function of the consistency ofthe composition, rotating at a spin speed of 200 rpm. The measurement istaken after 10 minutes of rotation.

A first subject of the present patent application is a composition forcoating keratin fibres, comprising an aqueous phase and an emulsifyingsystem, such that the emulsifying system comprises:

-   -   at least one C₁₀-C₃₀ alkyl phosphate and    -   at least one C₈-C₂₄ fatty alkyl ether of polyethylene glycol,        the ether comprising from 1 to 19 ethylene glycol units and        having an HLB_(<)8 at 25° C.

The HLB (hydrophilic-lipophilic balance) in the Griffin sense is definedin J. Soc. Cos. Chem. 1954 (volume 5), pages 249-256.

A second subject of the present patent application is a process formaking up or for non-therapeutically caring for keratin fibres,comprising the application to the keratin fibres of the compositionaccording to the present patent application.

A third subject of the present patent application concerns the uses ofthe composition according to the present patent application, inparticular the use of this composition for obtaining uniform and/orvolumizing makeup on the eyelashes.

Other characteristics, properties and advantages of the presentinvention will emerge more clearly on reading the description and theexamples that follow.

Emulsifying System

The alkyl phosphate(s) that may be used in the compositions according tothe present patent application is (are) preferably chosen from C₁₄-C₂₄and preferably C₁₆-C₁₈ alkyl phosphates, and mixtures thereof. Even morepreferably, they are chosen from cetyl phosphate, stearyl phosphate andcetearyl phosphate. The alkyl phosphate is particularly cetyl phosphate,for example sold under the names Amphisol K (Roche), Amphisol A (Roche),Arlatone MAP (Uniqema) and Crodafos MCA (Croda).

The content of alkyl phosphate(s) is not limited and preferablygenerally ranges from 0.1% to 20% by weight and more preferably from0.5% to 12% by weight relative to the total weight of the composition.

The C₈-C₂₄ fatty alkyl ether(s) of polyethylene glycol comprising from 1to 19 ethylene glycol units and having an HLB<8 at 25° C., which may beused in the compositions according to the present patent application, is(are) preferably chosen from C₁₆-C₂₂ fatty alkyl ethers of polyethyleneglycol comprising from 1 to 19 ethylene glycol units.

The fatty alkyl ether of polyethylene glycol is particularly thecompound bearing the INCI name Steareth-2 (polyethylene glycol (2)stearyl ether) with an HLB equal to 5, this product being sold, forexample, under the names Brij 72 (Uniqema) and Volpo S2 (Croda).

The content of C₈-C₂₄ fatty alkyl ether of polyethylene glycolcomprising from 1 to 19 ethylene glycol units and of HLB<8 at 25° C.preferably generally ranges from 0.1% to 20% by weight and morepreferably from 0.5% to 10% by weight relative to the total weight ofthe composition.

According to one embodiment, the emulsifying system containing thecombination of C₁₀-C₃₀ alkyl phosphate and of C₈-C₂₄ fatty alkyl etherof polyethylene glycol, the ether comprising from 1 to 19 ethyleneglycol units and having an HLB<8 at 25° C., constitutes the mainsurfactant system of the composition.

The term “main surfactant system” means a system which, in its absence,does not lead to the formation of a stable composition.

The term “stable” means a composition which, after having been placed inan oven at 45° C. for two months, does not have, after returning to roomtemperature, any grains that are perceptible to the touch, when a thincoat of the composition is sheared between the fingers.

According to one particular embodiment, the emulsifying systemcontaining the combination of C₁₀-C₃₀ alkyl phosphate and of C₈-C₂₄fatty alkyl ether of polyethylene glycol, the ether comprising from 1 to19 ethylene glycol units and having an HLB<8 at 25° C., constitutes thesole surfactant system of the composition.

The tem′ “sole” means that any possible additional surfactant system ispresent in a content not exceeding 1% and preferably not exceeding 0.5%.More preferably, the term “sole” denotes a total absence of any othersurfactant system.

According to one variant, the cosmetic composition according to thepresent patent application comprises less than 1% and preferably lessthan 0.5% by weight of triethanolamine, and better still is free oftriethanolamine.

According to one preferred variant, the cosmetic composition accordingto the present patent application comprises less than 1% and preferablyless than 0.5% by weight of triethanolamine stearate, and better stillis free of triethanolamine stearate.

The composition according to the invention obviously comprises aphysiologically acceptable medium. For the purposes of the presentpatent application, the term “physiologically acceptable compound ormedium” means a compound or medium whose use is compatible withapplication to the eyelashes.

Aqueous Phase

The composition according to the invention comprises an aqueous phase,which may form the continuous phase of the composition.

The term “composition with a continuous aqueous phase” means that thecomposition has a conductivity, measured at 25° C., of greater than 23μS/cm (microSiemens/cm), the conductivity being measured, for example,using an MPC227 conductimeter from Mettler Toledo and an Inlab730conductivity measuring cell. The measuring cell is immersed in thecomposition so as to remove any air bubbles liable to form between thetwo electrodes of the cell. The conductivity reading is taken once theconductimeter value has stabilized. A mean is determined over at leastthree successive measurements.

The aqueous phase comprises water and/or at least one water-solublesolvent.

In the present invention, the term “water-soluble solvent” denotes acompound that is liquid at room temperature and water-miscible(miscibility in water of greater than 50% by weight at 25° C. andatmospheric pressure).

The water-soluble solvents that may be used in the compositionsaccording to the invention may also be volatile.

Among the water-soluble solvents that may be used in the compositionsaccording to the invention, mention may be made especially of lowermonoalcohols containing from 1 to 5 carbon atoms, such as ethanol andisopropanol, glycols containing from 2 to 8 carbon atoms, such asethylene glycol, propylene glycol, 1,3-butylene glycol and dipropyleneglycol.

The aqueous phase (water and optionally the water-miscible solvent) isgenerally present in the composition according to the present patentapplication in a content generally ranging from 1% to 95% by weight,preferably generally ranging from 3% to 80% by weight and preferentiallygenerally ranging from 5% to 60% by weight relative to the total weightof the composition.

The emulsifying system may also contain at least one additionalsurfactant, other than the C₁₀-C₃₀ alkyl phosphates and the fatty alkylether of polyethylene glycol as defined above, appropriately chosen soas to obtain a wax-in-water or oil-in-water emulsion.

According to the present invention, the additional surfactant is not asurfactant system as defined above, given that this additionalsurfactant alone cannot lead to the formation of a stable composition,as defined above.

In particular, an emulsifier having at 25° C. an HLB(hydrophilic-lipophilic balance), in the Griffin sense, of greater thanor equal to 8 may be used.

These additional surfactants may be chosen from nonionic, anionic,cationic and amphoteric surfactants or emulsifying surfactants.Reference may be made to Kirk-Othmer's “Encyclopedia of ChemicalTechnology”, volume 22, pp. 333-432, 3rd edition, 1979, Wiley, for thedefinition of the properties and (emulsifying) functions of surfactants,in particular pp. 347-377 of this reference, for anionic, amphoteric andnonionic surfactants.

These additional surfactants may be preferentially chosen from:

-   -   a) nonionic surfactants with an HLB of greater than or equal to        8 at 25° C., used alone or as a mixture; mention may be made        especially of:    -   oxyethylenated and/or oxypropylenated ethers (which may comprise        from 1 to 150 oxyethylene and/or oxypropylene groups) of        glycerol;    -   oxyethylenated and/or oxypropylenated ethers (which may comprise        from 20 to 1000 oxyethylene and/or oxypropylene groups) of fatty        alcohols (especially of C₈-C₂₄ and preferably C₁₂-C₁₈ alcohol),        such as oxyethylenated stearyl alcohol ether containing 20        oxyethylene groups (CTFA name Steareth-20) such as Brij 78 sold        by the company Uniqema, oxyethylenated cetearyl alcohol ether        containing 30 oxyethylene groups (CTFA name Ceteareth-30) and        the oxyethylenated ether of the mixture of C₁₂-C₁₅ fatty        alcohols comprising 7 oxyethylene groups (CTFA name C12-15        Pareth-7) sold under the name Neodol 25-7® by Shell Chemicals;    -   fatty acid esters (especially of a C₈-C₂₄ and preferably C₁₆-C₂₂        acid) of polyethylene glycol (which may comprise from 1 to 150        ethylene glycol units), such as PEG-50 stearate and PEG-40        monostearate sold under the name Myrj 52P® by the company ICI        Uniqema;    -   fatty acid esters (especially of a C₈-C₂₄ and preferably C₁₆-C₂₂        acid) of oxyethylenated and/or oxypropylenated glyceryl ethers        (which may comprise from 1 to 150 oxyethylene and/or        oxypropylene groups), for instance PEG-200 glyceryl monostearate        sold under the name Simulsol 220 TM® by the company SEPPIC;        glyceryl stearate polyethoxylated with 30 ethylene oxide groups,        for instance the product Tagat S® sold by the company        Goldschmidt, glyceryl oleate polyethoxylated with 30 ethylene        oxide groups, for instance the product Tagat O® sold by the        company Goldschmidt, glyceryl cocoate polyethoxylated with 30        ethylene oxide groups, for instance the product Varionic LI 13®        sold by the company Sherex, glyceryl isostearate polyethoxylated        with 30 ethylene oxide groups, for instance the product Tagat L®        sold by the company Goldschmidt, and glyceryl laurate        polyethoxylated with 30 ethylene oxide groups, for instance the        product Tagat I® from the company Goldschmidt;    -   fatty acid esters (especially of a C₈-C₂₄ and preferably C₁₆-C₂₂        acid) of oxyethylenated and/or oxypropylenated sorbitol ethers        (which may comprise from 1 to 150 oxyethylene and/or        oxypropylene groups), for instance polysorbate 60 sold under the        name Tween 60® by the company Uniqema;    -   dimethicone copolyol, such as the product sold under the name        Q2-5220® by the company Dow Corning;    -   dimethicone copolyol benzoate (Finsolv SLB 101® and 201® by the        company Finetex);    -   copolymers of propylene oxide and of ethylene oxide, also known        as EO/PO polycondensates;    -   and mixtures thereof.

The EO/PO polycondensates are more particularly copolymers consisting ofpolyethylene glycol and polypropylene glycol blocks, for instancepolyethylene glycol/polypropylene glycol/polyethylene glycol triblockpolycondensates. These triblock polycondensates have, for example, thefollowing chemical structure:H—(O—CH₂—CH₂)_(a)—(O—CH(CH₃)—CH₂)_(b)—(O—CH₂—CH₂)_(a)—OH,in which formula a generally ranges from 2 to 120 and b generally rangesfrom 1 to 100.

The EO/PO polycondensate preferably has a weight-average molecularweight generally ranging from 1000 to 15 000 and better still generallyranging from 2000 to 13 000. Advantageously, the EO/PO polycondensatehas a cloud point, at 10 g/l in distilled water, of greater than orequal to 20° C. and preferably greater than or equal to 60° C. The cloudpoint is measured according to ISO standard 1065. As EO/POpolycondensates that may be used according to the invention, mention maybe made of the polyethylene glycol/polypropylene glycol/polyethyleneglycol triblock polycondensates sold under the name Synperonic®, forinstance Synperonic PE/L44® and Synperonic PE/F127®, by the company ICI.

-   -   b) nonionic surfactants with an HLB of less than 8 at 25° C.,        optionally combined with one or more nonionic surfactants with        an HLB of greater than 8 at 25° C., such as those mentioned        above, such as:    -   saccharide esters and ethers, such as sucrose stearate, sucrose        cocoate and sorbitan stearate, and mixtures thereof, for        instance Arlatone 2121® sold by the company ICI;    -   fatty acid esters (especially of a C₈-C₂₄ and preferably C₁₆-C₂₂        acid) of polyols, especially of glycerol or of sorbitol, such as        glyceryl stearate, glyceryl stearate such as the product sold        under the name Tegin M® by the company Goldschmidt, glyceryl        laurate such as the product sold under the name Imwitor 312® by        the company Hüls, polyglyceryl-2 stearate, sorbitan tristearate        or glyceryl ricinoleate;    -   the mixture of cyclomethicone/dimethicone copolyol sold under        the name of Q2-3225C® by the company Dow Corning,    -   c) anionic surfactants such as:    -   C₁₆-C₃₀ fatty acid salts, especially those derived from amines,        for instance triethanolamine stearate and/or        2-amino-2-methyl-1,3-propanediol stearate; but preferably, the        composition according to the present patent application does not        contain any triethanolamine stearate;    -   polyoxyethylenated fatty acid salts, especially those derived        from amines or alkali metal salts, and mixtures thereof;    -   alkyl ether sulfates, such as sodium lauryl ether sulfate;    -   isethionates;    -   acylglutamates such as Disodium hydrogenated tallow glutamate        (Amisoft HS-21 R® sold by the company Ajinomoto), and mixtures        thereof.

The composition in accordance with the invention may also contain one ormore amphoteric surfactants, for instance N-acylamino acids such asN-alkylaminoacetates and disodium cocoamphodiacetate, and amine oxidessuch as stearamine oxide, or alternatively silicone surfactants, forinstance dimethicone copolyol phosphates such as the product sold underthe name Pecosil PS 100® by the company Phoenix Chemical.

According to one particular embodiment, the composition comprises anadditional surfactant of HLB>8 at 25° C., preferably a C₈-C₂₄ fattyalkyl ether of polyethylene glycol, the ether comprising from 20 to 1000ethylene glycol units. The ether may be present in a content generallyranging from 0.1% to 10% by weight and preferably 0.2% to 8% by weightrelative to the total weight of the composition.

Mention may be made in particular of oxyethylenated stearyl alcoholether containing 20 oxyethylene groups (CTFA name: Steareth-20).

According to one preferred embodiment, the composition also comprises aco-surfactant chosen from fatty alcohols, preferably containing from 10to 30 carbon atoms. The expression “fatty alcohol containing from 10 to30 carbon atoms” means any saturated or unsaturated, branched orunbranched pure fatty alcohol containing from 10 to 30 carbon atoms.

A fatty alcohol containing from 10 to 26 carbon atoms, better still from10 to 24 carbon atoms and even better still from 14 to 22 carbon atomsis preferably used.

As fatty alcohols that may be used in the composition, mention may bemade especially of lauryl alcohol, myristyl alcohol, cetyl alcohol,stearyl alcohol, oleyl alcohol, cetearyl alcohol (mixture of cetylalcohol and stearyl alcohol), behenyl alcohol and erucyl alcohol, andmixtures thereof. Cetyl alcohol is preferably used.

Such fatty alcohols are especially sold under the name Nafol by thecompany Sasol.

The fatty alcohol may be present in a content generally ranging from0.2% to 20% by weight and preferably from 0.3% to 10% by weight relativeto the total weight of the composition.

According to one embodiment, the composition according to the inventioncomprises, as emulsifying system, the following combination:

-   -   at least one C₁₀-C₃₀ alkyl phosphate surfactant,    -   at least one C₈-C₂₄ fatty alkyl ether of polyethylene glycol,        the ether comprising from 1 to 19 ethylene glycol units and        having an HLB<8 at 25° C.,    -   at least one C₈-C₂₄ fatty alkyl ether of polyethylene glycol,        the ether comprising from 20 to 1000 ethylene glycol units and        of HLB>8 at 25° C., and    -   at least one fatty alcohol containing from 10 to 30 carbon        atoms.

In the composition in accordance with the invention, the total contentof surfactants may generally range from 0.1% to 30% by weight,preferably from 1% to 20% and better still from 2% to 15% by weightrelative to the total weight of the composition.

Wax(es)

The composition according to the present patent applicationadvantageously comprises at least one wax.

For the purposes of the present invention, the term “wax” means alipophilic compound, which is solid at room temperature (25° C.), with areversible solid/liquid change of state, which has a melting point ofgreater than or equal to 30° C., which may be up to 120° C.

The melting point of the wax may be measured using a differentialscanning calorimeter (DSC), for example the calorimeter sold under thename DSC 30 by the company Mettler.

The waxes may be hydrocarbon-based waxes, fluoro waxes and/or siliconewaxes and may be of plant, mineral, animal and/or synthetic origin. Inparticular, the waxes have a melting point of greater than 25° C. andbetter still greater than 45° C.

The wax may be present in a content generally ranging from 0.1% to 50%by weight, better still from 1% to 40% by weight and even better stillfrom 5% to 30% by weight relative to the total weight of thecomposition.

Hydrocarbon-based waxes, for instance beeswax, lanolin wax or Chineseinsect wax; rice wax, carnauba wax, candelilla wax, ouricury wax,esparto grass wax, cork fibre wax, sugarcane wax, Japan wax and sumachwax; montan wax, microcrystalline waxes, paraffins and ozokerite;polyethylene waxes, the waxes obtained by Fisher-Tropsch synthesis andwaxy copolymers, and also esters thereof, may especially be used.

Mention may also be made of waxes obtained by catalytic hydrogenation ofanimal or plant oils containing linear or branched C₈-C₃₂ fatty chains.

Among these waxes that may especially be mentioned are hydrogenatedjojoba oil, isomerized jojoba oil such as the trans-isomerized partiallyhydrogenated jojoba oil manufactured or sold by the company Desert Whaleunder the commercial reference Iso-Jojoba-50®, hydrogenated sunfloweroil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenatedlanolin oil and bis(1,1,1-trimethylolpropane)tetrastearate sold underthe name Hest 2T-4S by the company Heterene,bis(1,1,1-trimethylolpropane)tetrabehenate sold under the name Hest2T-4B by the company Heterene.

Mention may also be made of silicone waxes, for instance alkyl or alkoxydimethicones containing from 16 to 45 carbon atoms, and fluoro waxes.

The wax obtained by hydrogenation of olive oil esterified with stearylalcohol, sold under the name Phytowax Olive 18L57 or else the waxesobtained by hydrogenation of castor oil esterified with cetyl alcoholsold under the names Phytowax ricin 16L64 and 22L73 by the companySophim may also be used. Such waxes are described in patent applicationFR-A-2 792 190.

According to one particular embodiment, the compositions in accordancewith the invention may comprise at least one “tacky” wax, i.e. a waxwith a tack of greater than or equal to 0.7 N·s and a hardness of lessthan or equal to 3.5 MPa.

The use of a tacky wax may especially allow the production of a cosmeticcomposition that is easy to apply to the eyelashes, that attaches wellto the eyelashes and that leads to the formation of a smooth, uniformand thickening makeup.

The tacky wax used may especially have a tack generally ranging from 0.7N·s to 30 N·s, in particular greater than or equal to 1 N·s, especiallygenerally ranging from 1 N·s to 20 N·s, in particular greater than orequal to 2 N·s, especially generally ranging from 2 N·s to 10 N·s and inparticular generally ranging from 2 N·s to 5 N·s.

The tack of the wax is determined by measuring the change in force(compression force or stretching force) as a function of time, at 20°C., using the texturometer sold under the name TA-TX2i® by the companyRheo, equipped with a conical acrylic polymer spindle forming an angleof 45°.

The measuring protocol is as follows:

The wax is melted at a temperature equal to the melting point of thewax+10° C. The molten wax is poured into a container 25 mm in diameterand 20 mm deep. The wax is recrystallized at room temperature (25° C.)for 24 hours such that the surface of the wax is flat and smooth, andthe wax is then stored for at least 1 hour at 20° C. before measuringthe tack.

The texturometer spindle is displaced at a speed of 0.5 mm/s thenpenetrates the wax to a penetration depth of 2 mm. When the spindle haspenetrated the wax to a depth of 2 mm, the spindle is held still for 1second (corresponding to the relaxation time) and is then withdrawn at aspeed of 0.5 mm/s.

During the relaxation time, the force (compression force) decreasesgreatly until it becomes zero, and then, during the withdrawal of thespindle, the force (stretching force) becomes negative and then risesagain to the value 0. The tack corresponds to the integral of the curveof the force as a function of time for the part of the curvecorresponding to negative values of the force (stretching force). Thetack value is expressed in N·s.

The tacky wax that may be used generally has a hardness of less than orequal to 3.5 MPa, in particular generally ranging from 0.01 MPa to 3.5MPa, especially generally ranging from 0.05 MPa to 3 MPa or evengenerally ranging from 0.1 MPa to 2.5 MPa.

The hardness is measured according to the protocol described previously.

A tacky wax that may be used is a C₂₀-C₄₀ alkyl(hydroxystearyloxy)stearate (the alkyl group containing from 20 to 40carbon atoms), alone or as a mixture, in particular a C₂₀-C₄₀ alkyl12-(12′-hydroxystearyloxy)stearate, of formula (II):

in which m is an integer generally ranging from 18 to 38, or a mixtureof compounds of formula (II).

Such a wax is especially sold under the names Kester Wax K 82 P® andKester Wax K 80 P® by the company Koster Keunen.

The waxes mentioned above generally have a starting melting point ofless than 45° C.

The microcrystalline wax sold under the reference SP18 by the companyStrahl & Pitsch, which has a hardness of about 0.46 MPa and a tack valueof about 1 N·s, may also be used.

The wax(es) may be in the form of an aqueous microdispersion of wax. Theexpression “aqueous microdispersion of wax” means an aqueous dispersionof wax particles in which the size of the wax particles is less than orequal to about 1 μm.

Wax microdispersions are stable dispersions of colloidal wax particles,and are described especially in “Microemulsions Theory and Practice”,L.M. Prince Ed., Academic Press (1977) pages 21-32.

In particular, these wax microdispersions may be obtained by melting thewax in the presence of a surfactant, and optionally of a portion ofwater, followed by gradual addition of hot water with stirring. Theintermediate formation of an emulsion of the water-in-oil type isobserved, followed by a phase inversion, with final production of amicroemulsion of the oil-in-water type. On cooling, a stablemicrodispersion of solid wax colloidal particles is obtained.

The wax microdispersions may also be obtained by stirring the mixture ofwax, surfactant and water using stirring means such as ultrasound,high-pressure homogenizers or turbomixers.

The particles of the wax microdispersion preferably have mean sizes ofless than 1 μm (especially generally ranging from 0.02 μm to 0.99 μm)and preferably less than 0.5 μm (especially generally ranging from 0.06μm to 0.5 μm).

These particles consist essentially of a wax or a mixture of waxes.However, they may comprise a small proportion of oily and/or pasty fattyadditives, a surfactant and/or a common liposoluble additive/activeagent.

The compositions according to the present patent application may alsocontain at least one hydrophilic or lipophilic film-forming a polymer.

In the present patent application, the term “film-forming polymer” meansa polymer that is capable, by itself or in the presence of an auxiliaryfilm-forming agent, of forming a macroscopically continuous film thatadheres to the eyelashes, and preferably a cohesive film, and betterstill a film whose cohesion and mechanical properties are such that saidfilm can be isolated and manipulated in isolation, for example when saidfilm is made by pouring onto a non-stick surface, for instance aTeflon-coated or silicone-coated surface.

In general, the content of “film-forming polymer” in the compositionsaccording to the present patent application generally ranges from 0.1%to 40%, preferably from 0.5% to 30% and better still from 1% to 20% byweight relative to the total weight of the composition.

The hydrophilic film-forming polymer may be a water-soluble polymer ormay be in dispersion in an aqueous medium.

Among the film-forming polymers that may be used in the composition ofthe present invention, mention may be made of synthetic polymers, offree-radical type or of polycondensates type, and polymers of naturalorigin, and mixtures thereof.

Examples of water-soluble film-forming polymers that may be mentionedinclude:

-   -   proteins, for instance proteins of plant origin such as wheat or        soybean proteins; proteins of animal origin such as keratins,        for example keratin hydrolysates and sulfonic keratins;    -   cellulose polymers such as hydroxyethylcellulose,        hydroxypropylcellulose, methylcellulose,        ethylhydroxyethylcellulose and carboxymethylcellulose, and also        quaternized cellulose derivatives;    -   acrylic polymers or copolymers, such as polyacrylates or        polymethacrylates;    -   vinyl polymers, for instance polyvinylpyrrolidones, copolymers        of methyl vinyl ether and of maleic anhydride, the copolymer of        vinyl acetate and of crotonic acid, copolymers of        vinylpyrrolidone and of vinyl acetate; copolymers of        vinylpyrrolidone and of caprolactam; polyvinyl alcohol;    -   anionic, cationic, amphoteric or nonionic chitin or chitosan        polymers;    -   gum arabics, guar gum, xanthan derivatives and karaya gum;    -   alginates and carrageenans;    -   glycoaminoglycans, and hyaluronic acid and derivatives thereof;    -   shellac resin, sandarac gum, dammar resins, elemi gums and copal        resins;    -   deoxyribonucleic acid;    -   mucopolysaccharides such as chondroitin sulfates;    -   and mixtures thereof.

The film-forming polymer may also be present in the composition in theform of particles dispersed in an aqueous phase, which is generallyknown as a latex or pseudolatex. The techniques for preparing thesedispersions are well known to those skilled in the art.

Aqueous dispersions of film-forming polymer that may be used include theacrylic dispersions sold under the names Neocryl XK-90®, Neocryl A-107®,Neocryl A-1090®, Neocryl BT-62®, Neocryl A-1079® and Neocryl A-523® bythe company Avecia-Neoresins, Dow Latex 432® by the company DowChemical, Daitosol 5000 AD® or Daitosol 5000 SJ® by the company DaitoKasey Kogyo; Syntran 5760® by the company Interpolymer, Allianz Opt® bythe company Rohm & Haas or the aqueous polyurethane dispersions soldunder the names Neorez R-981® and Neorez R-974® by the companyAvecia-Neoresins, Avalure UR-405®, Avalure UR-410®, Avalure UR-425®,Avalure UR-450®, Sancure 875®, Avalure UR-445® and Sancure 2060® by thecompany Noveon, Impranil 85® by the company Bayer, Aquamere H-1511® bythe company Hydromer; the sulfopolyesters sold under the brand nameEastman AQ® by the company Eastman Chemical Products, vinyl dispersions,for instance Mexomer PAM®, aqueous polyvinyl acetate dispersions, forinstance Vinybran® from the company Nisshin Chemical or those sold bythe company Union Carbide, aqueous dispersions of vinylpyrrolidone,dimethylaminopropylmethacrylamide andlauryldimethyipropylmethacrylamido-ammonium chloride terpolymer, such asStyleze W from ISP, aqueous dispersions of polyurethane/polyacrylichybrid polymers such as those sold under the references Hybridur® by thecompany Air Products or Duromer® from National Starch, and dispersionsof core/shell type: for example those sold by the company Atofina underthe reference Kynar (core: fluoro; shell: acrylic) or alternativelythose described in document U.S. Pat. No. 5,188,899 (core: silica;shell: silicone), and mixtures thereof.

The lipophilic polymer may be in solution or in dispersion in anon-aqueous solvent phase.

The compositions according to the present patent application may alsocontain at least one hydrophilic gelling agent, which may be chosenfrom:

-   -   acrylic or methacrylic acid homopolymers or copolymers or salts        and esters thereof and in particular the products sold under the        names Versicol F® or Versicol K by the company Allied Colloid,        Ultrahold 8® by the company Ciba-Geigy, and polyacrylic acids of        Synthalen K type,    -   the copolymers of acrylic acid and of acrylamide sold in the        form of the sodium salt thereof under the name Reten® by the        company Hercules and the sodium salts of polyhydroxycarboxylic        acids sold under the name Hydagen F® by the company Henkel,    -   polyacrylic acid/alkyl acrylate copolymers of Pemulen type,    -   AMPS (polyacrylamidomethylpropanesulfonic acid partially        neutralized with aqueous ammonia and highly crosslinked) sold by        the company Clariant,    -   AMPS/acrylamide copolymers of Sepigel® or Simulgel® type sold by        the company SEPPIC, and    -   AMPS/polyoxyethylenated alkyl methacrylate copolymers        (crosslinked or non-crosslinked), and mixtures thereof,    -   associative polyurethanes such as the polymer C₁₆-OE₁₂₀-C₁₆ from        the company Servo Delden (sold under the name SER AD FX1100,        which is a molecule containing a urethane function and having a        weight-average molecular weight of 1300), OE being an        oxyethylene unit, Rheolate 205 containing a urea function sold        by the company Rheox, or alternatively Rheolate 208 or 204        (these polymers being sold in pure form) or DW 1206B from Rohm &        Haas, with a C₂₀ alkyl chain and a urethane bond, sold at 20%        active material in water. Solutions or dispersions of these        associative polyurethanes, especially in water or in        aqueous-alcoholic medium, may also be used. Examples of such        polymers that may be mentioned include SER AD FX1010, SER AD FX        1035 and SER AD 1070 from the company Servo Delden, and Rheolate        255, Rheolate 278 and Rheolate 244 sold by the company Rheox.        The products DW 1206F and DW 1206J, and also Acrysol RM 184 or        Acrysol 44 from the company Rohm & Haas, or Borchigel LW 44 from        the company Borchers, may also be used,    -   and mixtures thereof.

Certain water-soluble film-forming polymers mentioned above may also actas water-soluble gelling agent.

The hydrophilic gelling agents may be present in the compositionsaccording to the invention in a content generally ranging from 0.05% to40%, preferably from 0.1% to 20% and better still from 0.5% to 15% byweight relative to the total weight of the composition.

The compositions according to the present patent application may alsocontain at least one or more oils or organic solvent.

The term “oil or organic solvent” means a non-aqueous substance that isliquid at room temperature and atmospheric pressure. The oil may bevolatile or non-volatile.

For the purposes of the invention, the term “volatile oil or organicsolvent” means any non-aqueous medium that is capable of evaporating oncontact with the skin or the eyelashes in less than one hour, at roomtemperature and atmospheric pressure. The volatile organic solvent(s)and volatile oils of the invention are volatile organic solvents andcosmetic oils that are liquid at room temperature, with a non-zerovapour pressure at room temperature and atmospheric pressure, generallyranging in particular from 0.13 Pa to 40 000 Pa (10⁻³ to 300 mmHg), inparticular generally ranging from 1.3 Pa to 13 000 Pa (0.01 to 100mmHg), and more particularly generally ranging from 1.3 Pa to 1300 Pa(0.01 to 10 mmHg). The term “non-volatile oil” means an oil that remainson the skin or the keratin fibre at room temperature and atmosphericpressure for at least several hours and that especially has a vapourpressure of less than 10⁻³ mmHg (0.13 Pa).

The oil may be present in the composition in a content generally rangingfrom 0.05% to 30% and preferably from 0.1% to 15% by weight relative tothe total weight of the composition. The composition according to theinvention may comprise volatile oils or non-volatile oils, and mixturesthereof.

The volatile oils (or organic solvents) may be hydrocarbon-based oils,silicone oils or fluoro oils, or mixtures thereof.

The term “hydrocarbon-based oil” means an oil mainly containing hydrogenand carbon atoms and optionally oxygen, nitrogen, sulfur or phosphorusatoms. The volatile hydrocarbon-based oils may be chosen fromhydrocarbon-based oils containing from 8 to 16 carbon atoms, andespecially branched C₈-C₁₆ alkanes, for instance C₈-C₁₆ isoalkanes ofpetroleum origin (also known as isoparaffins), for instance isododecane(also known as 2,2,4,4,6-pentamethylheptane), isodecane andisohexadecane, for example the oils sold under the trade names Isopar orPermethyl, branched C₈-C₁₆ esters and isohexyl neopentanoate, andmixtures thereof. Other volatile hydrocarbon-based oils, for instancepetroleum distillates, especially those sold under the name Shell Solt®by the company Shell, may also be used.

Volatile oils that may also be used include volatile silicones, forinstance volatile linear or cyclic silicone oils, especially those witha viscosity≤6 centistokes (6×10⁻⁶ m²/s) and especially containing from 3to 6 silicon atoms, these silicones optionally comprising alkyl oralkoxy groups containing from 1 or 2 carbon atoms. As volatile siliconeoils that may be used in the invention, mention may be made especiallyof octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane,dodecamethylcyclohexa-siloxane, heptamethylhexyltrisiloxane,heptamethyloctyltrisiloxane, hexamethyl-disiloxane,octamethyltrisiloxane, decamethyltetrasiloxane anddodecamethylpenta-siloxane, and mixtures thereof.

Volatile organic solvents, especially fluorinated solvents such asnonafluoro-methoxybutane or perfluoromethylcyclopentane, may also beused.

Each of the compositions in accordance with the invention may alsocomprise at least one non-volatile oil or organic solvent, which may bechosen in particular from non-volatile hydrocarbon-based oils and/orsilicone oils and/or fluoro oils.

Non-volatile hydrocarbon-based oils that may especially be mentionedinclude:

-   -   hydrocarbon-based oils of plant origin, such as triglycerides        consisting of fatty acid esters of glycerol, the fatty acids of        which may have varied chain lengths from C₄ to C₂₄, these chains        possibly being linear or branched, and saturated or unsaturated;        these oils are especially wheatgerm oil, sunflower oil,        grapeseed oil, sesame seed oil, corn oil, apricot oil, castor        oil, rhea oil, avocado oil, olive oil, soybean oil, sweet almond        oil, palm oil, rapeseed oil, cottonseed oil, hazelnut oil,        macadamia oil, jojoba oil, alfalfa oil, poppy oil, pumpkin oil,        sesame seed oil, marrow oil, rapeseed oil, blackcurrant oil,        evening primrose oil, millet oil, barley oil, quinoa oil, rye        oil, safflower oil, candlenut oil, passion flower oil and musk        rose oil; or alternatively caprylic/capric acid triglycerides        such as those sold by the company Stéarineries Dubois or those        sold under the names Miglyol 810®, 812® and 818® by the company        Dynamit Nobel,    -   synthetic ethers containing from 10 to 40 carbon atoms;    -   linear or branched hydrocarbons of mineral or synthetic origin,        such as petroleum jelly, polydecenes, hydrogenated polyisobutene        such as parleam, and squalane, and mixtures thereof;    -   synthetic esters such as oils of formula R₁COOR₂ in which R₁        represents a linear or branched fatty acid residue containing        from 1 to 40 carbon atoms and R₂ represents an in particular        branched hydrocarbon-based chain containing from 1 to 40 carbon        atoms, on condition that R₁+R₂≥10, for instance purcellin oil        (cetostearyl octanoate), isopropyl myristate, isopropyl        palmitate, C₁₂-C₁₅ alkyl benzoate, hexyl laurate, diisopropyl        adipate, isononyl isononanoate, 2-ethylhexyl palmitate,        isostearyl isostearate, alkyl or polyalkyl octanoates,        decanoates or ricinoleates such as propylene glycol dioctanoate;        hydroxylated esters such as isostearyl lactate and diisostearyl        malate; and pentaerythritol esters;    -   fatty alcohols that are liquid at room temperature, containing a        branched and/or unsaturated carbon-based chain containing from        12 to 26 carbon atoms, for instance octyldodecanol, isostearyl        alcohol, oleyl alcohol, 2-hexyldecanol, 2-butyloctanol or        2-undecylpentadecanol;    -   higher fatty acids such as oleic acid, linoleic acid or        linolenic acid;    -   and mixtures thereof.

The non-volatile silicone oils that may be used in the composition inaccordance with the invention may be non-volatile polydimethylsiloxanes(PDMSs), polydimethylsiloxanes comprising alkyl or alkoxy groups, thatare pendent and/or at the end of a silicone chain, the groups eachcontaining from 2 to 24 carbon atoms, phenyl silicones, for instancephenyl trimethicones, phenyl dimethicones,phenyltrimethylsiloxydiphenylsiloxanes, diphenyl dimethicones,diphenylmethyldiphenyltrisiloxanes and 2-phenylethyltrimethylsiloxysilicates.

The fluoro oils that may be used in the compositions in accordance withthe invention are, in particular, fluorosilicone oils, fluoro polyethersor fluorosilicones, as described in document EP-A-847 752.

The content of non-volatile oil or organic solvent in the composition inaccordance with the invention generally ranges from 0.01% to 30% byweight, in particular from 0.1% to 25% by weight and better still from0.1% to 20% by weight relative to the total weight of the composition.

The compositions in accordance with the invention may also comprise atleast one dyestuff, for instance pulverulent dyes, liposoluble dyes andwater-soluble dyes.

The pulverulent dyestuffs may be chosen from pigments and nacres.

The pigments may be white or coloured, mineral and/or organic, andcoated or uncoated. Among the mineral pigments that may be mentioned aretitanium dioxide, optionally surface-treated, zirconium oxide, zincoxide or cerium oxide, and also iron oxide or chromium oxide, manganeseviolet, ultramarine blue, chromium hydrate and ferric blue. Among theorganic pigments that may be mentioned are carbon black, pigments of D&Ctype, and lakes based on cochineal carmine or on barium, strontium,calcium or aluminium.

The nacres may be chosen from white nacreous pigments such as micacoated with titanium or with bismuth oxychloride, coloured nacreouspigments such as titanium mica with iron oxides, titanium mica with,especially, ferric blue or chromium oxide, titanium mica with an organicpigment of the abovementioned type, and also nacreous pigments based onbismuth oxychloride.

The liposoluble dyes are, for example, Sudan Red, D&C Red 17, D&C Green6, β-carotene, soybean oil, Sudan Brown, D&C Yellow 11, D&C Violet 2,D&C Orange 5, quinoline yellow and annatto.

These dyestuffs may be present in a content generally ranging from 0.01%to 30% by weight relative to the total weight of the composition.

The compositions in accordance with the invention may also comprise atleast one filler.

The fillers may be chosen from those that are well known to thoseskilled in the art and commonly used in cosmetic compositions. Thefillers may be mineral or organic, and lamellar or spherical. Mentionmay be made of talc, mica, silica, kaolin, polyamide powders, forinstance the Nylon® sold under the trade name Orgasol® by the companyAtochem, poly-β-alanine powders and polyethylene powders, powders oftetrafluoro-ethylene polymers, for instance Teflon®, lauroyllysine,starch, boron nitride, expanded polymeric hollow microspheres such asthose of polyvinylidene chloride/acrylonitrile, for instance theproducts sold under the name Expancel® by the company Nobel Industrie,acrylic powders, such as those sold under the name Polytrap® by thecompany Dow Corning, polymethyl methacrylate particles and siliconeresin microbeads (for example Tospearls® from Toshiba), precipitatedcalcium carbonate, magnesium carbonate and magnesium hydrocarbonate,hydroxyapatite, hollow silica microspheres (Silica Beads® fromMaprecos), glass or ceramic microcapsules, metal soaps derived fromorganic carboxylic acids containing from 8 to 22 carbon atoms and inparticular from 12 to 18 carbon atoms, for example zinc, magnesium orlithium stearate, zinc laurate and magnesium myristate.

It is also possible to use a compound that is capable of swelling onheating, and especially heat-expandable particles such as non-expandedmicrospheres of copolymer of vinylidene chloride/acrylonitrile/methylmethacrylate or of acrylonitrile homopolymer copolymer, for instancethose sold, respectively, under the references Expancel® 820 DU 40 andExpancel® 007WU by the company Akzo Nobel.

The fillers may represent from 0.1% to 25% and in particular from 0.2%to 20% by weight relative to the total weight of the composition.

The compositions in accordance with the invention may also comprisefibres that allow an improvement in the lengthening effect.

The term “fibre” should be understood as meaning an object of length Land diameter D such that L is very much greater than D, D being thediameter of the circle in which the cross section of the fibre isinscribed. In particular, the ratio L/D (or shape factor) is chosen inthe generally range from 3.5 to 2500, especially from 5 to 500 and inparticular from 5 to 150.

The fibres that may be used in the composition of the invention may bemineral or organic fibres of synthetic or natural origin. They may beshort or long, individual or organized, for example braided, and hollowor solid. They may have any shape, and may especially have a circular orpolygonal (square, hexagonal or octagonal) cross section, depending onthe intended specific application. In particular, their ends are bluntand/or polished to prevent injury.

In particular, the fibres have a length generally ranging from 1 μm to10 mm, preferably from 0.1 mm to 5 mm and better still from 0.3 mm to3.5 mm. Their cross section may be within a circle of diameter generallyranging from 2 nm to 500 μm, preferably generally ranging from 100 nm to100 μm and better still from 1 μm to 50 μm. The weight or yarn count ofthe fibres is often given in denier or decitex, and represents theweight in grams per 9 km of yarn. In particular, the fibres according tothe invention may have a yarn count chosen in the generally range from0.15 to 30 denier and better still from 0.18 to 18 denier.

The fibres that may be used in the composition of the invention may bechosen from rigid or non-rigid fibres, and may be of synthetic ornatural, mineral or organic origin.

Moreover, the fibres may or may not be surface-treated, may be coated oruncoated, and may be coloured or uncoloured.

As fibres that may be used in the composition according to theinvention, mention may be made of non-rigid fibres such as polyamide(Nylon®) fibres or rigid fibres such as polyimideamide fibres, forinstance those sold under the names Kermel® and Kermel Tech® by thecompany Rhodia or poly(p-phenyleneterephthalamide) (or aramid) fibressold especially under the name Kevlar® by the company DuPont de Nemours.

The fibres may be present in the composition according to the inventionin a content generally ranging from 0.01% to 10% by weight, inparticular from 0.1% to 5% by weight and more particularly from 0.3% to3% by weight relative to the total weight of the composition.

The compositions in accordance with the invention may also comprise atleast one cosmetic active agent.

As cosmetic active agents that may be used in the compositions inaccordance with the invention, mention may be made especially ofantioxidants, preserving agents, fragrances, neutralizers, emollients,thickeners, coalescers, plasticizers, moisturizers, vitamins andscreening agents, in particular sunscreens, and mixtures thereof.

Needless to say, a person skilled in the art will take care to selectthe optional additional additives and/or the amount thereof such thatthe advantageous properties of the composition according to theinvention are not, or are not substantially, adversely affected by theenvisaged addition.

Preferably, the composition according to the invention is a leave-incomposition. Advantageously, the composition is a mascara.

The examples that follow are given as illustrations of the presentinvention and shall not limit the scope thereof.

EXAMPLES

The following compositions were prepared. Compositions 1 to 5 arecomparative compositions and compositions 6 to 8 are in accordance withthe invention.

The amounts indicated are expressed as mass percentages relative to thetotal weight of the composition.

6 7 8 Composition 1 2 3 4 5 invention invention invention Carnauba wax3.21 3.21 3.21 3.21 3.21 3.21 3.21 3.21 Beeswax 4.07 4.07 4.07 4.07 4.074.07 4.07 4.07 Paraffin wax 12.86 12.86 12.86 12.86 12.86 12.86 12.8612.86 Hydroxyethyl- 0.89 0.89 0.89 0.89 0.89 0.89 0.89 0.89 celluloseGum arabic 3.39 3.39 3.39 3.39 3.39 3.39 3.39 3.39 Simethicone 0.13 0.130.13 0.13 0.13 0.13 0.13 0.13 Iron oxide 7.14 7.14 7.14 7.14 7.14 7.147.14 7.14 Preserving agent 1 1 1 1 1 1 1 1 Steareth-20 (Brij 10 — — 6.666.66 — 4.44 4.44 78P from Uniqema) Cetyl phosphate — 10 — — 3.33 6.662.18 2.18 (Arlatone MAP from Uniqema) Steareth-2 (Brij 72 — — 10 3.33 —3.33 2.1 2.1 from Uniqema) Cetyl alcohol — 2 Water qs 100 qs 100 qs 100qs 100 qs 100 qs 100 qs 100 qs 100

The viscosity of each of the compositions is measured according to theprotocol described above.

6 7 8 Results 1 2 3 4 5 invention invention invention Viscosity 1.4 139.5 1.7 1.3 14.6 6.4 15.1 (in Pa · s) Quality of the Average Poor PoorAverage Poor Good Good Good dispersion Colour of the Grey Grey Grey GreyGrey Black Black Black final product

The compositions according to the present patent application make itpossible to obtain mascaras of satisfactory viscosity with good pigmentdispersion, which ensures a black shade, as desired for this type ofproduct. These mascaras apply easily to the eyelashes and form a smooth,uniform, charging deposit.

The above written description of the invention provides a manner andprocess of making and using it such that any person skilled in this artis enabled to make and use the same, this enablement being provided inparticular for the subject matter of the appended claims, which make upa part of the original description and including a compositioncomprising an aqueous phase and an emulsifying system, wherein theemulsifying system contains:

-   -   at least one C₁₀-C₃₀ alkyl phosphate and    -   at least one C₈-C₂₄ fatty alkyl ether of polyethylene glycol,        the ether comprising from 1 to 19 ethylene glycol units and        having an HLB<8 at 25° C.

As used herein, the phrases “selected from the group consisting of,”“chosen from,” and the like include mixtures of the specified materials.Terms such as “contain(s)” and the like as used herein are open termsmeaning ‘including at least’ unless otherwise specifically noted.Phrases such as “mention may be made,” etc. preface examples ofmaterials that can be used and do not limit the invention to thespecific materials, etc., listed.

All references, patents, applications, tests, standards, documents,publications, brochures, texts, articles, etc. mentioned herein areincorporated herein by reference. Where a numerical limit or range isstated, the endpoints are included. Also, all values and subrangeswithin a numerical limit or range are specifically included as ifexplicitly written out.

The above description is presented to enable a person skilled in the artto make and use the invention, and is provided in the context of aparticular application and its requirements. Various modifications tothe preferred embodiments will be readily apparent to those skilled inthe art, and the generic principles defined herein may be applied toother embodiments and applications without departing from the spirit andscope of the invention. Thus, this invention is not intended to belimited to the embodiments shown, but is to be accorded the widest scopeconsistent with the principles and features disclosed herein. In thisregard, certain embodiments within the invention may not show everybenefit of the invention, considered broadly.

What is claimed is:
 1. A method of making up eyelashes, comprisingapplying a mascara composition to the eyelashes, the mascara compositioncomprising: water; an emulsifying system comprising potassium cetylphosphate and steareth-2; at least one pigment having a color; and atleast one wax; wherein the emulsification system inhibits aggregation ofthe pigment in the mascara composition such that the color of thepigment is not inhibited, and wherein the mascara composition has aviscosity ranging from 1 to 60 Pa·s.
 2. The method according to claim 1,wherein the at least one pigment comprises at least one iron oxide. 3.The method according to claim 1, wherein the at least one pigment ispresent in an amount of 0.01 to 30% by weight relative to the totalweight of the mascara composition.
 4. The method according to claim 1,wherein the content of steareth-2 ranges from 0.1% to 20% by weightrelative to the total weight of the mascara composition.
 5. The methodaccording to claim 1, wherein the mascara composition has a viscosityranging from 3 to 30 Pa·s.
 6. The method according to claim 1, whereinthe emulsifying system further comprises at least one additionalsurfactant other than the potassium cetyl phosphate and the stereath-2.7. The method according to claim 1, wherein the at least one wax ispresent in an amount of from 5% to 50% by weight relative to the totalweight of the mascara composition.
 8. The method according to claim 1,wherein the mascara composition is a volumizing mascara.